Found in VectorEyes's collection of stuff: this EPROM, that apparently came with an EPROM programmer looking like this one: http://8bs.com/see/multprm.jpg - and these two items did seem to work together, though it wasn't 100% reliable. I'm assuming this is age-related problems with the hardware.
The differences are all in the text messages. (< lines are from the bbc.nvg.org copy, > lines are from this EPROM.)
Code: Select all
< 00000000: 00 00 00 4c df 80 82 16 01 55 56 49 50 52 4f 4d ...L.....UVIPROM
< 00000010: 20 31 2e 31 0d 0d 00 28 43 29 20 31 39 38 35 20 1.1...(C) 1985
---
> 00000000: 00 00 00 4c df 80 82 16 01 42 42 50 52 4f 4d 20 ...L.....BBPROM
> 00000010: 20 31 2e 30 0d 0d 00 28 43 29 20 31 39 38 35 20 1.0...(C) 1985
Code: Select all
< 00000210: 81 a0 b6 a2 81 20 28 81 20 e7 ff 20 08 81 52 65 ..... (. .. ..Re
< 00000220: 66 65 72 20 74 6f 20 75 73 65 72 20 6d 61 6e 75 fer to user manu
< 00000230: 61 6c 20 66 6f 72 20 6f 70 65 72 61 74 69 6e 67 al for operating
< 00000240: 20 69 6e 73 74 72 75 63 74 69 6f 6e 73 2e 0d ea instructions...
---
> 00000210: 81 a0 b6 a2 81 20 28 81 20 e7 ff 20 08 81 46 75 ..... (. .. ..Fu
> 00000220: 6c 6c 20 6f 70 65 72 61 74 69 6e 67 20 69 6e 73 ll operating ins
> 00000230: 74 72 75 63 74 69 6f 6e 73 20 69 6e 20 6d 61 6e tructions in man
> 00000240: 75 61 6c 2e 20 20 20 20 20 20 20 20 20 20 0d ea ual. ..
Code: Select all
< 00000860: 68 20 6f 66 66 20 56 63 63 20 28 35 56 29 20 62 h off Vcc (5V) b
< 00000870: 65 66 6f 72 65 20 69 6e 73 65 72 74 69 6e 67 20 efore inserting
< 00000880: 6f 72 20 72 65 6d 6f 76 69 6e 67 20 45 50 52 4f or removing EPRO
< 00000890: 4d 73 20 28 6e 6f 20 4c 45 44 20 69 73 20 61 6c Ms (no LED is al
< 000008A0: 69 67 68 74 29 20 2e 41 6c 77 61 79 73 20 70 72 ight) .Always pr
< 000008B0: 65 73 73 20 74 68 65 20 3c 42 52 45 41 4b 3e 20 ess the <BREAK>
< 000008C0: 6b 65 79 20 61 66 74 65 72 20 70 6f 77 65 72 69 key after poweri
< 000008D0: 6e 67 20 75 70 20 74 68 65 20 55 56 49 50 52 4f ng up the UVIPRO
< 000008E0: 4d 20 20 20 2e 0d 54 68 65 20 66 6f 6c 6c 6f 77 M ..The follow
< 000008F0: 69 6e 67 20 63 6f 6d 6d 61 6e 64 73 20 61 72 65 ing commands are
< 00000900: 20 61 76 61 69 6c 61 62 6c 65 0d 2e 0d 00 00 00 available......
< 00000910: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
---
> 00000860: 68 20 6f 66 66 20 56 63 63 2f 35 56 20 62 65 66 h off Vcc/5V bef
> 00000870: 6f 72 65 20 69 6e 73 65 72 74 69 6e 67 20 6f 72 ore inserting or
> 00000880: 0d 72 65 6d 6f 76 69 6e 67 20 45 50 52 4f 4d 73 .removing EPROMs
> 00000890: 20 28 6e 6f 20 4c 45 44 20 69 73 20 61 6c 69 67 (no LED is alig
> 000008A0: 68 74 29 2e 0d 50 72 65 73 73 20 74 68 65 20 3c ht)..Press the <
> 000008B0: 42 52 45 41 4b 3e 20 6b 65 79 20 61 66 74 65 72 BREAK> key after
> 000008C0: 20 56 63 63 2f 35 56 20 69 73 0d 73 77 69 74 63 Vcc/5V is.switc
> 000008D0: 68 65 64 20 6f 6e 2c 20 74 6f 20 72 65 73 65 74 hed on, to reset
> 000008E0: 20 74 68 65 20 63 6f 75 6e 74 65 72 73 2e 0d 54 the counters..T
> 000008F0: 68 65 20 66 6f 6c 6c 6f 77 69 6e 67 20 63 6f 6d he following com
> 00000900: 6d 61 6e 64 73 20 61 72 65 20 61 76 61 69 6c 61 mands are availa
> 00000910: 62 6c 65 20 3a 2d 0d 00 00 00 ff ff ff ff ff ff ble :-..........
